go 'round again

Here’s something I noticed. If you walk around one block, the distance covered is four blocks. If you walk around two blocks, the distance is six blocks. Now, go around four blocks. That’s an eight block walk. Okay, how about three? Well, the distance around a three block enclosure, whether a long rectangle or an el shape, is also eight blocks. I have checked and rechecked this, with an actual dog. I probably shouldn’t let this bother me. I should probably use my brain for having interesting ideas that benefit all humankind. But we’ve tried that, and it doesn’t help.